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Related Concept Videos

Teeth01:15

Teeth

326
The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
326

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Studying Orthodontic Tooth Movement in Mice
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Multi-modal characterization of rodent tooth development.

Yuchen Jiang1, Kaitlin A Katsura2,3,4, Nir Z Badt5

  • 1Materials Science and Engineering, School of Engineering and Applied Science, University of Pennsylvania, PA, USA.

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Summary
This summary is machine-generated.

This study reveals how mineral composition dictates mechanical properties in developing craniofacial hard tissues like enamel, dentin, and bone. Multi-modal analysis shows distinct changes during mouse mandible development.

Keywords:
dental developmentmaterials characterizationmineralized tissuesmulti-modal

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Area of Science:

  • Craniofacial Biology
  • Biomaterials Science
  • Developmental Biology

Background:

  • Craniofacial tissues, including enamel, dentin, and bone, undergo significant mineralization and physicochemical changes during development.
  • Understanding these changes is crucial for comprehending craniofacial structure-function relationships.

Purpose of the Study:

  • To investigate the mechanical and chemical properties of developing enamel, dentin, and bone in the mouse mandible.
  • To elucidate the relationship between mineral composition and mechanical properties in these tissues.

Main Methods:

  • Utilized a multi-modal, multi-scale analysis approach.
  • Integrated micro-computed tomography (microCT), nanoindentation (NI), energy dispersive spectroscopy (EDS), and Raman spectroscopy.
  • Analyzed developing incisor and first molar tissues at postnatal day 12.

Main Results:

  • Demonstrated distinct patterns of mechanical, elemental, and chemical changes across mineralized tissues.
  • Observed that mineral composition significantly influences the mechanical properties of developing craniofacial hard tissues.
  • Highlighted variations in mineralization and property development between enamel, dentin, and bone.

Conclusions:

  • Mineral composition is a key driver of mechanical properties in developing craniofacial hard tissues.
  • Multi-modal characterization provides new insights into structure-function relationships in craniofacial biology.
  • Findings offer a foundation for future research in craniofacial genetics and developmental abnormalities.